One of my sons is driving me demented with his reaction when he's told off. The little git responds to all interventions preventing him from or admonishing him for doing evil deeds by smiling and laughing. Suddenly I understand why people talk of dumb insolence and tell kids to "wipe that smile off your face- RIGHT NOW." I find it absolutely totally and utterly infuriating... Why why why is he doing this? Do you think it could be nervousness because he's scared that I'm angry? Is he misguidedly trying to charm me? I'm not a total shrieking ogre with stratospheric expectations or anything- I just intervene whilst trying to prevent world war 3 between him and his brother, keep him safe and reasonally well behaved etc. All I want him to do is take what I'm saying on board (eventually) and not GRIN at me while I'm delivering the message. Any thoughts?